# Sennheiser HD 400 S
See [usage instructions](https://github.com/jaakkopasanen/AutoEq#usage) for more options and info.

### Parametric EQs
You can use filters 1-5 or 1-10. Apply preamp of -4.0 dB or -3.9 dB, respectively.

|   # | Type      |   Fc (Hz) |    Q |   Gain (dB) |
|-----|-----------|-----------|------|-------------|
|   1 | LowShelf  |       105 | 0.7  |         7.4 |
|   2 | Peaking   |       195 | 0.18 |       -16.1 |
|   3 | Peaking   |       224 | 0.51 |        19.2 |
|   4 | Peaking   |      5459 | 2.6  |       -10.8 |
|   5 | Peaking   |      5720 | 0.96 |         8.7 |
|   6 | Peaking   |        58 | 2.86 |        -1   |
|   7 | Peaking   |       782 | 2.57 |         1.1 |
|   8 | Peaking   |      3161 | 0.87 |        -1.6 |
|   9 | Peaking   |      3779 | 4.28 |         3.7 |
|  10 | HighShelf |     10000 | 0.7  |         1.7 |

### Fixed Band EQs
When using fixed band (also called graphic) equalizer, apply preamp of **-5.1 dB** (if available) and set gains manually with these parameters.

|   # | Type    |   Fc (Hz) |    Q |   Gain (dB) |
|-----|---------|-----------|------|-------------|
|   1 | Peaking |        31 | 1.41 |         3.9 |
|   2 | Peaking |        62 | 1.41 |        -1.3 |
|   3 | Peaking |       125 | 1.41 |         0.1 |
|   4 | Peaking |       250 | 1.41 |         4.3 |
|   5 | Peaking |       500 | 1.41 |        -3.5 |
|   6 | Peaking |      1000 | 1.41 |        -2.7 |
|   7 | Peaking |      2000 | 1.41 |        -2.8 |
|   8 | Peaking |      4000 | 1.41 |         1.3 |
|   9 | Peaking |      8000 | 1.41 |         1.9 |
|  10 | Peaking |     16000 | 1.41 |         5   |

### Graphs
![](./Sennheiser%20HD%20400%20S.png)
